Highly durable electrode catalyst layer
AssigneeAsahi Kasei Kabushiki Kaisha
InventorNaoto Miyake
Life of this patent
Estimating the term…
Abstract
An electrode catalyst layer characterized by comprising composite particles comprising electrode catalyst particles supported on electrically conductive particles, a perfluorocarbonsulfonic acid resin (component A) and a polyazole compound (component B), the content of the composite particles being 20 to 95% by weight, the total weight of component A and component B being 5 to 80% by weight, the weight ratio between component A and component B (A/B) being 1 to 999.
Claims14
An electrode catalyst layer comprising a composite particle having an electrode catalyst particle supported on an carbon black, activated carbon, graphite, and various metals, a perfluorocarbon sulfonic acid resin (component A) and a polyazole-based compound (component B), wherein polyazole-based compound is selected from the group consisting of compounds represented by chemical formulae (4), (5) and (6) found below;
- wherein R represents,
- an alkylene chain, a divalent group or a fluoroalkylene chain,
- each R1 independently represents a hydrogen atom, an alkyl, a phenyl group, or a pyridyl group, and “x” denotes a number from 10 or more to 1.0×107 or less;
- wherein “1” denotes a number from 10 or more to 1.0×107 or less, and R and R1 are defined in the same manner as in chemical formula (4);
- wherein “m” denotes a number from 10 or more to 1.0×107 or less, and R1 is defined in the same manner as in chemical formula (4);
- wherein the content of the composite particle is 20 to 95% by weight, the total weight of component A and component B is 5 to 80% by weight, and the weight ratio (A/B) between component A and component B is 1 to 499.
An electrode catalyst layer comprising a composite particle having an electrode catalyst particle supported on an carbon black, activated carbon, graphite, and various metals, a perfluorocarbon sulfonic acid resin (component A) and a polyazole-based compound (component B), wherein polyazole-based compound is selected from the group consisting of compounds represented by chemical formulae (4), (5) and (6) found below;
- wherein R represents,
- an alkylene chain, a divalent group or a fluoroalkylene chain,
- each R1 independently represents a hydrogen atom, an alkyl, a phenyl group, or a pyridyl group, and “x” denotes a number from 10 or more to 1.0×107 or less;
- wherein “1” denotes a number from 10 or more to 1.0×107 or less, and R and R1 are defined in the same manner as in chemical formula (4);
- wherein “m” denotes a number from 10 or more to 1.0x107 or less, and R1 is defined in the same manner as in chemical formula (4);
- wherein the content of the composite particle is 20 to 95% by weight, the total weight of component A and component B is 5 to 80% by weight, and the weight ratio (A/B) between component A and component B is 5.6 to 199.
Dependencies are inferred from the claim text.